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Old 03-19-2010, 07:13 PM   #1
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Grinding noise coming from the rear

I was driving home today when all the sudden
I here a grinding noise coming from my rear end.
When ever I put it in 4wd it gets even worse does
anyone know what this could be any help would be
great thanks. It's a 01 automatic if that helps

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Old 03-19-2010, 07:29 PM   #2
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Sounds like your rear end is making a grinding noise.

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Old 03-19-2010, 07:37 PM   #3
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WOW you should be a mechanic Mr.Clifford!
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Old 03-19-2010, 07:40 PM   #4
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You're telling me. And if I could tell you what's going on with your rear axle all the way from KS I should package that shit up and sell it.

This is the part where I tell you to get your own wrenches and pull the cover to find out. No other way around it... that's what it will take to find out.
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Old 03-19-2010, 07:50 PM   #5
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Grinding noise coming from your rear end could only mean you ate some really potent beans.

Seriously you need to check the drive train from the tranny on back, loose bolts, yokes, drive shaft and rear end. (jeep's not yours)
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Old 03-19-2010, 07:51 PM   #6
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Hey thanks for the help I just had a problem and
thought I would ask if anyone has had this problem
and could help. I thought that's what this forum was
for to help fellow jeeper's.
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Old 03-19-2010, 08:00 PM   #7
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That's what I planned on doing sometime this
weekend, all I have is a carport and it's snowing
now so it will have to wait for saturday.
Thanks Oranjeep.
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Old 03-19-2010, 08:14 PM   #8
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Easy there silverbullet. Grinding could be about 2000000000000000000000000 things. Mr. Clifford is about as smart with jeeps as you can get. So the only way you really find the problem is pulling it apart and looking. So before you give anymore crap give us some more info and maybe the first comment would of had a little more detail.

01 auto ok- rubi? 4 cyl- 6 cyl? So it all of a sudden just started grinding. Leads me to believe you toasted the spider gears or chipped the ring gear. You say it grinds more when you put it in 4WD. This also believes me to think did your t-case run out of fluid. How bout if you put it in neutral and push the jeep by hand does it still grind??

There is some help- next time drop the damn attitude.
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Old 03-19-2010, 08:30 PM   #9
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I have not been able to do anything yet like
I said before it happend on the way home and
it's like a blizzard outside so I'm going to wait for
it to clear up since I don't have any shelter. It a 6cyl
Dana 44 in rear. Not a Rubi. As far as the attitude goes
I just walked in and thought I would ask a question for any
ideas for what might be wrong. And the first answer I get was a
smarta** remark, I'm almost sure anyone who has something go
wrong with their jeep is not a happy camper so sorry did not mean
to step on any toes, but this is not how I like my weekends to start.
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Old 03-19-2010, 08:36 PM   #10
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How's this for being a smart ass??

One of these parts is your problem.



That is... if the problem is your rear axle. Could be something as simple as a busted UJoint. But we can't tell you. You have to look first.
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Old 03-19-2010, 08:36 PM   #11
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--Paging Mr. Clifford--- your having a bad day, let me buy you a beer

I know. Been there done that! You will find out the guys on the forum that know there stuff like to be smart-***'s every once in awhile while me I am all the time lol. You didn't step on anybody's toes, I have been trying to think of what it is still btw.

So you were driving- normal going home and then it just happened? Take a turn then did it. Kind of weird to hear of a dana 44 spitting out spider gears just driving( if that is what happened). They are pretty stout axles. I am more going to your t-case tho.
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Quote:
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Isn't the JK just a rebodied PT Cruiser?!

Quote:
Originally Posted by coyote_94yj
Just a few more inches Red. You can take it.


If you haven't gotten more out of the insurance company than you deserve, then you haven't screwed them nearly as much as they have been screwing you for the past xx years.
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Old 03-19-2010, 08:41 PM   #12
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--Paging Mr. Clifford--- your having a bad day, let me buy you a beer
I quit drinking.


Quote:
Originally Posted by jdhallissey View Post
So you were driving- normal going home and then it just happened? Take a turn then did it. Kind of weird to hear of a dana 44 spitting out spider gears just driving( if that is what happened). They are pretty stout axles. I am more going to your t-case tho.

That should make it a little easier. Here coors man. This should help you track down the problem if it is in the tcase. It is one of these problems causing the grinding in your rear.

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Old 03-19-2010, 08:44 PM   #13
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I just had a strawberry smoothie can I made you one of those

BTW to the t-case pic you just posted. When I had mine all apart I don't remember there being that many parts lol
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Isn't the JK just a rebodied PT Cruiser?!

Quote:
Originally Posted by coyote_94yj
Just a few more inches Red. You can take it.


If you haven't gotten more out of the insurance company than you deserve, then you haven't screwed them nearly as much as they have been screwing you for the past xx years.
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Old 03-19-2010, 08:49 PM   #14
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Everything was going good then I hit a red light, as soon as I
stared going again is when it started. I pulled over looked under the jeep
everything looked good to me, put it in drive and still did so I locked it in
4wd and it got louder and even worse in low.
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Old 03-19-2010, 08:50 PM   #15
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BTW to the t-case pic you just posted. When I had mine all apart I don't remember there being that many parts lol
WOW
You should
be a
mechanic




What's in the smoothie?
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Old 03-19-2010, 08:56 PM   #16
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I am going to go with the chain in the t-case is shot. Check your fluid in it.

To the smoothie--- strawberries - Ice- yogurt and IT WAS GOOD!
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Quote:
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Isn't the JK just a rebodied PT Cruiser?!

Quote:
Originally Posted by coyote_94yj
Just a few more inches Red. You can take it.


If you haven't gotten more out of the insurance company than you deserve, then you haven't screwed them nearly as much as they have been screwing you for the past xx years.
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Old 03-19-2010, 08:58 PM   #17
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I am going to go with the chain in the t-case is shot. Check your fluid in it.

To the smoothie--- strawberries - Ice- yogurt and IT WAS GOOD!

I had about as much a chance of guessing what was in your smoothie as I did of guessing what was wrong with the sliver bullets rear.
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Old 03-19-2010, 09:50 PM   #18
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grinding from the rear axle....

ring teeth? pinion teeth? spider gears? all or some of those?

if it gets louder in 4wd it could be the tcase chain has been stretched or the shift forks.

or it could be that you've also chipped a tooth on the front ring gear or pinion?

or it could be something in the rear drums? a clump of dried up mud making a grinding noise. or maybe one of the studs are loose one of the rear shafts and making contact with the drum.

or maybe its the driveshaft after all. These have all made strange grinding noises at one time or another on my jeep.

I'm anxious to hear what it was. Tell us when you find out. It is exciting

* oh yeah, and check the brake shoes and pads
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Old 03-19-2010, 10:04 PM   #19
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Pull your diff cover off, see if you have some metal shavings/clunks in it. If you do, probably your spider gears...

Since they brought up the t-case, might want to check that too.

Try and go somewhere for a free inspection... Idk if they do those anymore..
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Old 03-20-2010, 10:49 AM   #20
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silverbullet - My D44 with Trac Lok did almost the exact same thing. When I pulled the cover the lube was black like tar. I think the PO had used either MolySLip or XL-3 or some other crap they shouldn't have. I cleaned it up with brake cleaner, refilled it with synthetic (75w-140) and it's been fine since. I bought my Jeep used so I don't know what was done to it before I got it but it's fine now. Good luck, hope this helps. Like the regs pointed out, it could be a million things. If you bought your Jeep used, try changing the fluid (I've now changed ALL the fluids in mine). If you don't want to use brake cleaner in your rear axle, fill it with a less expensive conventional 75w-90 and drive it about 50 miles then dump it and refill it with the good stuff. Costs the same. The gunk I got out of my rear axle was like snot and molasses mixed together.
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Old 03-27-2010, 07:32 PM   #21
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My under educated guess will be the rear and or front brakes having trouble with them. You stated this was during blizzard like conditions and you slammed hard on the 'ol brake.

C.
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Old 03-27-2010, 10:59 PM   #22
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Back when I was in Hellinois, I had a rear shoe kaplode during an ice storm. Granted, it wasn't a jeep, but it sounded like all sorts of grinding hell. Might be worth checking, basically just requires pulling the wheels off.

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